This article at The Atlantic calls our attention to the 38,000 historical maps from the collection of David Rumsey that can be found at the Digital Public Library of America. Here is a taste:
More than three decades ago, David Rumsey began building a map
collection. By the mid-90s he had thousands and thousands of maps to
call his own -- and his alone. He wanted to share them with the public.
He could have donated them to the Library of Congress, but Rumsey had
even bigger ideas: the Internet. "With (some) institutions, the access
you can get is not nearly as much as the Internet might provide," Rumsey told Wired more than a decade ago. "I realized I could reach a much larger audience with the Internet."
Bit by bit, Rumsey digitized his collection -- up to 38,000 maps and other items
-- along the way developing software that made it easier for people to
explore the maps and 3D objects such as globes online. Today, the
Digital Public Library of America announced that Rumsey's collection
would now be available through the DPLA portal, placing the maps into
the deeper and broader context of the DPLA's other holdings.
"I am very excited to have my digital library of historical maps added to the DPLA," Rumsey was quoted as saying in a DPLA press release. "Maps tell stories that complement texts, images, and other resources found in the growing DPLA library."